Question

If M= 5x squared+7x-4 and N= -3x squared - 4x + 5, M-N equals

Answer 1

8x² + 11x - 9

Explanation:

M - N = 5x² + 7x - 4 - (- 3x² - 4x + 5)

= 5x² + 7x - 4 + 3x² + 4x - 5 ← collect like terms

= 8x² + 11x - 9